Thanks for all the suggestions! If there are more out there, keep them coming
. Here's a few others I found on Amazon.Com but havn't read yet, in case anyone else is interested:
The Wolf's Hour by Robert McCammon - Michael Gallatin is a British spy. Handsome, intelligent, cunning, seductive, he is everything James Bond could ever hope to be...except Gallatin is a werewolf.
Caught up in the troubles of WWII, desperately trying to uncover and stop a top-secret Nazi experiment, Gallatin meets a wide array of interesting and quirky characters, some of them friendly, some of them deadly. He must also come to grips with what he is, and face his own inner enemies...before time runs out.
Lammas Night by Katherine Kurtz - What Magic Can Stop Adolf Hitler -- History's Most Evil Black Magician?
The year is 1940. Hitler's Germany is about to employ the secret arts of evil witchcraft to destroy England. What can stop them?
It is the mission of John Graham, colonel in British Intelligence, to stop the onslaught of evil with an extraordinary strategy that defies all the rules of twentieth-century warfare: Unite the different witches' covens throughout England, drawing upon powers that reach back through dark centuries, in a ritual of awesome sacrifice on the first night of August.
Operation Chaos by Poul Anderson - Heroes Steve (a werewolf) and Virginia (his witch wife) fight against a demon being used as a superweapon in World War II, stop an elemental college prank gone amok, confront a succubus/incubus on their romantic getaway, and enter the hell dimension to save their daughter.
Knights of the Blood by Katherine Kurtz and Scott MacMillan - Start of a series that sees an order Crusader Knights-turned-vampires battling a sinister order of Nazi vampires.